Messages in this thread | | | Date | Thu, 1 Mar 2007 15:16:37 +0100 | From | Ingo Molnar <> | Subject | Re: [patch 00/13] Syslets, "Threadlets", generic AIO support, v3 |
| |
* Eric Dumazet <dada1@cosmosbay.com> wrote:
> I can tell you that the problem (at least on my machine) comes from : > > gettimeofday(&tm, NULL); > > in evserver_epoll.c
yeah, that's another difference - especially if it's something like an Athlon64 and gettimeofday falls back to pm-timer, that could explain the performance difference. That's why i repeatedly asked Evgeniy to use the /very same/ client function for both the epoll and the kevent test and redo the measurements. The numbers are still highly suspect - and we are already down from the prior claim of kevent being almost twice as fast to a 25% difference.
Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |